This image was added by kenrnoto on Aug 29, 2006 7:55 PM
"1. Single one crawling - enhanced photo so you can see the spines and the "saddleback". Note: the larger end is the head. It has the extra two spikes. The tail end has the fake white eye spots - these are to attract predators to the wrong end of the caterpillar; most likely so they'll get stung before doing much damage."